Page 1 of 2 12 LastLast
Results 1 to 10 of 18

Thread: case studies, success stories - positive learning experiences

  1. #1
    Automated Home Legend top brake's Avatar
    Join Date
    Feb 2015
    Location
    the edge of the cloud
    Posts
    837

    Default case studies, success stories - positive learning experiences

    it would be interesting to hear of case studies where evohome has been installed and there have been performance issues identified and subsequently corrected; as a learning exercise for all

    we have some experienced professional installers on this forum, and keen self installers whose personal experiences would be of great benefit

    lets try and keep this thread positive, and on topic!
    I work for Resideo, posts are personal and my own views.

  2. #2
    Automated Home Legend
    Join Date
    May 2014
    Posts
    998

    Default

    I will get the ball rolling. My Evohome ’S’ Plan system has a controller; 2 BDR91s (connected to the two motorised inline actuators), a hot water kit and 21HR92s. My Ideal Classic boiler is 14 years old and my HW system is an 250 Litre Unvented OSO cylinder. The system was installed by an Evohome Specialist installer in the summer of 2014.

    Initially, the system worked well; however, I noticed that 3 HR92s hadn’t been locked properly on to the top of the valves and, in two multi-TRV zones, the correct HR92 hadn’t been selected as the sensor ( one, for example was behind a long curtain). A week after the system was installed, the HW valve BDR lost communication with the controller during a thunderstorm. The fault cleared after about 8 hours.

    Heating was turned on in November and, for 6 weeks or so, the system worked well. Early in the New Year, the controller kept displaying actuator communications faults - initially on the HW BDR and then on both the HW and heating BDRs. My installer returned and exchanged both BDR faceplates. The faults went away for about 2 weeks and then returned in late January with a series of communications' faults on both BDRs - lasting anything from 30 minutes to 4 hours at a time.

    With advice from Honeywell it was agreed that the most likely cause of the problem was the incorrect placement of the 2 BDRs. The BDRs were originally installed in a vertical line just inside the airing cupboard. A minimum of 30 cms separation was achieved between the two BDRs and the OSO cylinder - but not from all the associated metal pipework and the junction box.

    The installer returned and re-located the two BDRs to the top of my airing cupboard - at least 30 cms above the HW cylinder and away the heating pressure tank. Both BDR plates were again changed. A few weeks on the system has not displayed any further communications faults.

    It is also worth mentioning that in the original position both BDRs had clear line of sight (about 3ft in distance) with my wall-mounted controller. In their new position, the cylinder sits between the two BDRs and the controller.

    Finally, for those dealing with older un-vented HW cylinders, I sought advice from OSO about HW probe placement. They clearly had given this issue some thought and their advice was that the probe could be safely inserted between the insulation foam and the inner tank surface via the electrical access panel. The probe is then wired in series with the existing cylinder temperature controls to the CS92. With care, the wire to the CS92 can be pushed through one of the access panel wiring points.

  3. #3
    Automated Home Legend top brake's Avatar
    Join Date
    Feb 2015
    Location
    the edge of the cloud
    Posts
    837

    Default

    Thanks for sharing, glad to hear the evohome is now performing well for you.
    I work for Resideo, posts are personal and my own views.

  4. #4
    Automated Home Ninja Mavis's Avatar
    Join Date
    Oct 2014
    Location
    North East
    Posts
    322

    Default

    My Evohome system was installed in August 2014 by an installer listed on the Honeywell website. I have a 6 year old Ravenheat combi boiler. I had HR92s installed on all rads (6 rooms). We did not have the heating on until around October and noticed 2 radiators only got half warm. Our installer came back and it turned out that he had only replaced the existing TRVs on 4 of the radiators. He replaced the other two (and made a mental note to himself for future installs) and all rads heat up fine now.

  5. #5
    Automated Home Legend
    Join Date
    Jan 2015
    Location
    NE UK
    Posts
    1,149

    Default

    I think what this is showing is that oft is the case that it is the installation that is not up to scratch and not the equipment. It is human nature to quickly blame our equipment when it is us who have not risen to the occasion by getting things right in the first place! In the case of Evohome a better written manual making it clear what is needed, and why, would be an improvement. In any other case of equipment failure I am not so sure a manual would help. It might! "RTFB" is the expression. But it is only fine if the B is worth reading and informative. I have said before that I have learned far more from these pages than the installation manual tells me. My Evohome equipment 3 months in is sound but works better because of what I have read here. Any other equipment failure I may have is only age related!

  6. #6
    Automated Home Jr Member
    Join Date
    Feb 2015
    Posts
    31

    Default

    My install was pretty easy, I had a British Gas Internet connected thermostat (pre Hive) that broke.

    Combined with the boiler physically shaking due to the thermostat being set to 25 to warm my sons room and the rest of the house at the same time!!! It made me look for better solutions to just heat a room at a time.

    The result was this system, 15 radiators in 12 zones. I have already seen a 40% reduction in gas use over the last month.

    Along with a much nicer system that allows flexible control I am very happy.

    I just removed the British Gas unit and wired in the Honeywell one in the same place. Fitted all TRV's and fiddled a bit to understand the system.

    I have lots of set points as the heating in some rooms is set to 25 still but not for hours. The boiler now does not shake or rattle as it is not running flat out and life with the Honeywell system is really good

  7. #7
    Automated Home Guru
    Join Date
    Feb 2015
    Location
    Netherlands, the
    Posts
    244

    Default

    Quote Originally Posted by G4RHL View Post
    I think what this is showing is that oft is the case that it is the installation that is not up to scratch and not the equipment.
    Working in IT I know that at least 90% of problems are human error and not system error. However, the other 10% can be REAL problems as must be treated as such. We're trying to keep things positive/on-topic here, so I won't go into details. Just wanted to reply to that remark in your post, G4RHL.

  8. #8
    Site Sponsor The EVOHOME Shop's Avatar
    Join Date
    Dec 2014
    Location
    Powys, Mid Wales
    Posts
    482

    Default

    I have seen some videos on YouTube by 'techydiy' that some people should really avoid! - https://www.youtube.com/channel/UCtM...wrdLEZNwLkj-2Q

    A couple of videos show BDR91 installations completely incorrect and blatantly ignoring the installation instructions! Why people do these videos without getting facts correct first!?

  9. #9
    Automated Home Guru
    Join Date
    Feb 2015
    Location
    Netherlands, the
    Posts
    244

    Default

    I've only looked at the videos posted by the Honeywell account (in Dutch). They are very clear and I must compliment Honeywell for them.

  10. #10
    Automated Home Legend top brake's Avatar
    Join Date
    Feb 2015
    Location
    the edge of the cloud
    Posts
    837

    Default

    Quote Originally Posted by The EVOHOME Shop View Post
    I have seen some videos on YouTube by 'techydiy' that some people should really avoid! - https://www.youtube.com/channel/UCtM...wrdLEZNwLkj-2Q

    A couple of videos show BDR91 installations completely incorrect and blatantly ignoring the installation instructions! Why people do these videos without getting facts correct first!?
    Ouch

    Those videos are pretty poor, challenge set to do better!

    Edit: there are video clips and animations in the youlearn training, perhaps it's time to publish these as short clips too
    Last edited by top brake; 16th March 2015 at 07:45 PM.
    I work for Resideo, posts are personal and my own views.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •